Appakatus for governing gas or petroleum motor engines



2 ShetsShet Patented 5. 1890.

N. A. OTTO. APPARATU$ FOR GOVERNING GAS 0R PETROLEUM MOTOR ENGINES. No. 433,808.

- 2 SheetsSheet 2. ,N. A. OTTO. A APPARATUS FOR GOVERNING GAS OR PETROLEUM MOTOR ENGINES.

No. 433,808. Patentd Aug. 5, 1890.

No Model.)

NICOLAUS AUGUST OTTO, ()F oLoGNE, Ass1GNoR TO THE GASMOT OREN- FABRIK-liEUTZ, OF K(')LN-DEU Z,- GERMANY.

APPARATUS FOR GOVERNING GAS 0R PETROLEUM MOTOR ENGIN ES.

SPECIFICATION forming part of Letters Patent No. 433,808, dated August 5, 1890.

Application liled April 10, 1390. Serial No. 347,343. no model.) Patented in England March 17, 1890, llo. 4,1641 ln'iBelglllm,

March 22, 1890, No- 89,,920, and in Ital April 19, 1890, 111113264.

To gull whom it may concern.-

Be it known that LNIooLAUs AUGUST OTTO, a citizen of Prussia, residing at Cologne, in the GermanEmpire, have invented new and useful-Improvements in Apparatus for Governing Gasfior Petroleum Motor Engines, (for which I have obtained Letters Patent in'Belgium,-

dated March 22, 1890, No. 89,920; in Italy,

dated April 19, 1890, 1'01. LIII, No. 264, and.

in Great Britain by an application for patent,

which patent when granted will bear date March 17,1890, N0. 4,164 of which the following is a specification.

Thisinvention relates to that construct-Ion of gas or petroleum motor engines in which the admission of the combustible gas or liquid into the cylinder is etfected by means of a valve controlled by an inertia governor with hit-andmiss device-that is to say, in

which, when the engine runs too fast, a reciprocafiug rod acted upon by a weight, and

which ordinarily pushes against a notch or projection on the gas-valve lever so as to open the gas-valve, is moved by the mertiaof the weight so as tomiss the valve-lever, and thus cause the valveto remain closed.

According to my present-invention I conibine with the gas-valve or valve-lever a catch or stop which acts upon the discharge-valve of the engine or upon the gear thereof in such a..manner as to hold the discharge-valve open during the time when the gas or oil admission valve is not actedupon bythe reciproeating rod, sothat during the ensuing strokes of the. piston the productscf combustion, toget er with air, are alternately expelled and drawn into the cylinder again, instead of only drawing in and expelling air, whereby the unnecessary coqlingdown of the cylinder go 'during'ilieti nie that the engine is running :without power is prevented.

, Figures'l and 2 of the accompanying drawings show, by way of example, a gas-inotor engine of vertical construction-with the above-described invention applied thereto. Y b is the gas-valve, the rod of which is connected by a bell-crank lever 10 ton sliding rod 7:, opposite which is a rod a, pivoted to a slide 10, and having a weighted arm 12' fixed to it, the slide 12 haying a to and-fro motion.

impartedgto i by a link 0, connected to the rod q, that works the gas-slide r of the engine.

'12 is the discharge-val ve otthe engine, closed catches over the stud h when the bell-crank lever e c has been moved into the position shown in Fig.2 by the cam f, in whiclrit holds the discharge-valve open, the lever being acted upon by a spring 'm,'which tends the lever dis connected by a rod 0 tot-he rod the levercl is-at the same time moved so as to 5 ;to hold it in this position. The other end of 1' release the stud h, whereupon the discharge valve or will be closed by its spring. I Y

From the above description it will be seen that every time the discharge-valve is opened by thecam'f it will be held open by the catch Z until this is withdrawn again on the opening of the gas-valve b, so that when this fails to be opened by the hit-and-miss device a k of the inertia governor on the normal speed of the engine being exceededas'shown at Fig. 8o

2, the discharge-valve remains open, allowing the products of combustion to be drawn back again into the cylinder from the discharge pipe or passage, as before described, until, by v the reduction of the speed, the inertia'gov i ernor again causes the gas-valve to be opened during the charging-stroke, whereupon the a discharge-valve will close again.

Having thus described 'the nature of my in- 'vention and the best means I'know of carrying the same into practical elfect,-I claim-- 1. In a gas or petroleum motor engine wherein the discharge-valve for the products of combustion is kept open during the time that the normal speed is exceeded, a catch or looking device operating on the discharge-valve gear for holding the-discharge-valve in the open position every time it is opened, said Ail catch or lock-mg device being connected to the gas-valve gear operated by an inertia governor with hitand-missdcvicc, so that when the gas-valve is opened by said inertia governor the catch or locking device is made to release the discharge-valve.

2. In a gasor petroleum motor engine wherein the supply of combustible gas or liquid to the cylinder is effected by avalve contmlled by means of an inertia. governor with hit-andmiss device, the combination, with the gas or petroleum admission valve, of a catch or lcclo ing device acting on the discharge-valve gear of the eylind er, said catch or locking device being made to hold the discharge-valve open when the hit-and-miss device fails to open the gas or petroleum valve, substantially as and for the purposes described.

In regulating apparatus for gas or petroleum motor engines wherein the supply of combustible gas or liquid to the cylinder is effected by a valve controlled by means of an inertia governor with hit-and-miss device, the combination, with a. bell-crank lever actuated by the inertia governor and connected to the gas-valve, of a pivoted lever, one end of which has a catch and which is urged bya. spring to engage with a stud on a lever connected to the discharge-valve and actuated by a revolving cam, so that when the discharge-valve is opened it is kept open by the said catch until it is released by the opening of the gas;val v,e',,

substantially .as and for the purposes described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 26th day of March, N. D. 1890.

NICOLAUS AUGUST OTTO. Witnesses:

PET. LANGEN,

WILH. SPIECKER. 

